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How to determine the focus position of laser cutting machine

Views:6551     Author:heyu     Publish Time: 2020-04-29      Origin:Leapion fiber laser cutting machine

  The focus position of metal laser cutting machine is very important

  The laser power density of the laser cutting machine has a great influence on the cutting speed, and the focus position is very important. However, if the cutting head of the optical fiber laser cutting machine you purchased does not have the auto focusing function, the focusing work needs to be done manually. The laser cutting machine with the auto focusing function is generally a little more expensive in price, so the metal laser cutting machine with the auto adjusting function There is no focusing problem in the laser cutting machine. What we are discussing here is how to determine the focus position of the laser cutting machine without the function of auto focusing machine.

  How to determine the focus position of laser cutting machine

  The spot size after laser beam aggregation is directly proportional to the focal length of the lens. There are three simple ways to determine cutting focus in the industrial field:

  1、 Printing method: make the cutting head move from top to bottom, and print with laser beam on the plastic plate, with the smallest printing diameter as the focus.

  2、 Inclined plate method: use the plastic plate placed at an angle with the vertical axis to pull it horizontally to find the minimum position of the laser beam as the focus.

  3、 Blue spark method: remove the nozzle, blow air, and hit the pulse laser on the stainless steel plate, so that the cutting head moves from top to bottom until the blue spark is the focus.

  At present, many laser cutting machine manufacturers of laser cutting machine equipment have achieved automatic focusing. With the auto focus function, the processing efficiency of the laser cutting machine can be significantly improved. Compared with the cost of labor and time, the laser cutting machine with auto focus is a very good choice in terms of cost performance. With the auto focus function, the perforation time of thick plate is greatly reduced. When processing workpieces of different materials and thicknesses, the machine can automatically adjust the focus to the most appropriate position, which saves a lot of unnecessary operations.

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